Gasoline strainer



Dec. 27, 1927.

M. VARGO GASOLINE STRAINER Filed July 24, 1925 MKE l meca'o,v INVENTOR ATTORNEY Patented Dec. 27, 1927.

' UNITED STATES MIKE VARGO, or YUKON, PENNSYLVANIA.

GASOLINE STRAINER.

Application filed July 24, 1925 Serial No. 45,874.

This invention relates to straining devices, and more particularly to What I term a gasoline strainer for use in connection with carburetors for internal combustio engines. 1 a

One of the main objects of the-invention is to provide a straining device which can be quickly and easily-applied to a carburetor of standard construction without necessitating any changes therein, this strainer being capable of being produced and applied at small cost. A further object is to provide a straining device so constructed that the. strainer proper can be readily flushed out without any necessity of detaching the device from the carburetor; F urther objects will appear from the detail olescription. I a

In the drawing's: Figure 1 is an elevation of the device as applied; I

Figure 2 is a section taken substantially on line 2-2 of Figure 1, parts being shownin elevation;

Figure 3 is a section taken substantially on line 33 of Figure 1;

Figure 4 is a section taken substantially on line 4-4 of Figure 2.

The device includes a body 1 provided adjacent its upper end with an inner annular shoulder 2. The body is provided at its lowerend with a neck 3 and includes a receiving chamber 4, the. bore of the neck being ofless diameter than the bore of the receiving chamber. Shoulder 2 is provided with a central opening disposed in alignment-with the bore of neck 3 and a strainer 5 of reticulated construction; is mounted within the body, this strainer being provided at its upper end with a collar 6 having an outer annular flange 7' which seats upon the upper face of shou1der2. A packing. gasket 8 seats upon the upper face of flange 7 and a packing nut 9 is threaded into the upper end of body 1, the gasket being provided with a central opening which coin cides with the opening of collar 6. One arm 10 of an elbow'lO is threaded into packing nut 9 and the other arm of this elbow is connected by a coupling 11 of known type to a supply pipe 12 which may be connected to a suitable tank or receptacle for supplying gasoline to the carburetor. I

The strainer 5 extends through chamber 4 from the top to the bottom thereof and fits snugly through shoulder 2. This strainer is provided at its lower end witha collar 7 which fits snugly into the upper portion of A drain plug 13 is,

thebore of neck 3. threaded into neck 3 and is provided with a bore 14 with which communicates a discharge opening or vent 15. A valve 16 operates in the bore 14 of plug 13, the lower portlon of this bore being shaped to provide a seat for the valve. This valve is provided with a threaded stem 16 which operates in the neck, and with a rod. 17 extending through the outer end of the valve stem diametrically thereof. W'hen the valve 16 is seated the lower end of bore 14 is closed and the bore above the valve, together with the space above the upper end of plug 13 and the bottom of chamber 4, forms a sediment space in which foreign materials which may flow into the screen 5 with the gasoline colect. I Y

Anoutlet arm 18 communicates with the chamber 4 and is adapted for connection, at its outer end, to the intake 0 of a carburetor C of known type. The arm 18 is shown as being threaded into the intake element 0 of the carburetor though this connection may be made in any other suitable or preferred manner. illustrated, gasoline from pipe 12 flows into the upper end of the screen'or strainer 5 When the device is applied as and through the meshes thereof into the space between the screen and the surrounding wall of chamber 4. The screen acts to prevent passage of foreign materials therethrough and these materials settle to the bottom of the screen in the sediment space provided between the bottom of chamber 4 and the valve 16. This gasolinewhich has been thoroughly strained so as to haveall foreign materials removed therefrom then flows through outlet arm 18 into the intake of the carburetor. v To ensure the best operation of the device and eliminate all possibility of clogging up the screen it is advisable to wash or flush-the screen out' occa sionallya This is accomplished by turning I valve 16 into position to open the lower end is efiectually washed and flushed out so as to be thoroughly cleaned for further use, after which the valve 15 is turned into closed position, the device then operating in the manner previously described.

What I claim is 1. In a straining device, for use in connec tion with carburetors, a body provided'adj acent its upper end with an inner annular shoulder and with a receiving chamber below said shoulder, the body being further provided in its lower portion with a bore of less diameter than the chamber and communicating therewith, a sieve open at both ends fitting snugly through said shoulder and extending from the top to the bottom of the chamber with its lower portion fitting snugly into the bore of the body, said strainer being provided at its upper end with an outer annular flange seating upon the said shoulder, the sieve being disposed coaxially to the receiving chamber, means for connect ing a supply pipe to the body above the shoulder in position to discharge directly into the upper end of the sieve and for securing its flange upon the shoulder, a valved plug threaded into the bore of the body and having a lateral drain duct forming an outlet opening, means controlling communication between the duct and the opening of the plug, and an outlet membercommunicating with said chamber and adapted for connection to the nlet of a carburetor.

2. In a straining device for use in connection with carburetors, a body provided adjacent its upper end with an inner annular shoulder and with a receiving chamberbelow said shoulder, the body being further provided in its lower portion with a bore of less diameter than the chamber and communic-ating therewith, a sieve open at both ends fitting snugly through said shoulder and extending from the top to the bottom of the chamber with its lower portion fitting snugly into thebore of the body, said sieve being providedat its upper end with an outer annular flange seating upon the said shoulder, an inlet member, a packing nut carried by the inlet member and threaded into the upper end o'tthe body,;said nut coacting with the shoulder for securing the flange of the sieve and permitting the strainer to be withdrawn from the body through the upper end thereof when the nut is threaded out of the body, the nut also; acting to secure the inlet member to the body in position to discharge into the upper end of the sieve, a valved plug having a lateral opening, for

flushing said sieve, means controlling com-' munication between the duct and lateral opening of the valved plug, and an outlet member communicating with said chamber and adapted for connection to the inlet of a carburetor.

3. In a straining device for use in connection with carburetors, a body provided adjacent its upper end with an inner annular shoulder and with a receiving chamber below said shoulder, the body being further provided in its lower portion with a bore of less diameter than thechamber and communicating therewith, a sieve open at both ends fitting snugly through said shoulder and extending from the top to the bottom of the chamber with its lowerportion fitting snugly into the bore of the body, said sieve being provided at its upper end with an outer annular flange seating upon the said shoulder, an inlet member, a nut carried by the inlet member and threaded into the upper end of the body, said nut coacting with the shoulder for securing the flange of the sieve and permitting the strainer to be withdrawn from the body vthrough the upper end thereof when the nut is threaded out of the body, the nut also acting to secure the inlet member to the body in position todis charge into the upper end of the sieve, a packing gasket beneath the nut, a plug threaded into the bore of the body and ,havv ing a drain duct extending from its upper end and terminating in an outlet-opening, means controlling communication I-loetween the duct-and opening otthe plug, and a lateral outlet member communicating with said a chamber and adapted; for connection to'the inlet of a carburetor. a i

at. In straining. means, a body adjacent its upper end with an inner annu lar shoulder and with a receiving chamber below said shoulder, the body being'turther' provided in its lower portion with abore of less diameter than the chamber, a strainer open at bothends fitting snugly through said shoulder and'extending from the top provided to the bottom of the'chamberwithits lower I portion fitting snugly into the bore ofthe body, said strainer being provided at-its upper end with an outer annular flange seat ing upon said shoulder, means for connect ing a supply pipe to, the body above the shoulder thereof and for-securing the flange of the strainer, means forloptionally estah lishing communication between the. atmos phere and thebore oi": the body for flushing out the strainer, and an outlet member com municating'withsaid chamber. v Iii-testimony whereofl afiiX my signature.

I i M I K'E v ineo}; 

